A router is a computer and networking device that forwards data packets between computer networks, including internetworks such as the global Internet.
Rack containing a service-provider–class router connected to multiple networks
A home–class router with wireless capabilities; many home routers like this example combine router, wireless access point, switch and modem into one single unit (see also residential gateway)
The first ARPANET router, the Interface Message Processor, was delivered to UCLA August 30, 1969, and went online October 29, 1969.
A home or small office DSL router showing the telephone socket (left, white) to connect it to the internet using ADSL, and Ethernet jacks (right, yellow) to connect it to home computers and printers
A network switch is networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device.
Router (computing)
…translation, load balancing, or other higher-level functions are required, especially between zones. Wi-Fi routers combine the functions of a router, switch and a wireless access point. They are typically devices with a small form factor, operating on the standard electric power supply for residential use…
Avaya ERS 2550T-PWR, a 50-port Ethernet switch
A modular network switch with three network modules (a total of 36 Ethernet ports) and one power supply
A five-port layer-2 switch without management functionality
A rack-mounted 24-port 3Com switch